COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Short SD3-30 Series Aeroplanes

AD/SD3-30/46 Main Landing Gear Aft Pintle Pin Bushes 8/2003

Applicability: All SD3-30 aircraft.

Requirement: Action in accordance with Shorts Mandatory Service Bulletin SD330-32-122.

Compliance: At the next “D” Check after 7 August 2003 or before 30 April 2005, whichever occurs first.

This Airworthiness Directive becomes effective on 7 August 2003.

Background:  The manufacturer received a report of an accident where the main landing gear failed to fully extend and lock. Investigation revealed deterioration and corrosion of the aft pintle pin bushes. Additionally, a high frequency of landing gear indication problems appear to be associated with deterioration of the aft pintle pin bushes.

David Villiers

Delegate of the Civil Aviation Safety Authority 18 June 2003

The above AD is notified in the Commonwealth of Australia Gazette on 16 July 2003.

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